Mixed micellar properties of cationic trimeric-type quaternary ammonium salts and anionic sodium n-octyl sulfate surfactants

Effect of surfactant head group on micellization and morphological transitions in drug-Surfactant catanionic mixture: A multi-technique approach

“…In equations (2) and (3) region followed by decrease in magnitude when concentration exceeds equimolarity which can be attributed to the steric hindrance offered by more TC molecules as earlier reported in many catanionic mixtures [36][37][38][39][40]. But at αTC = 0.9 in case of TC + SDBS, the highest β m value were found to be present when which might be due to the reason that more TC molecules orient the bulkier headgroups of SDBS molecules in such a array that they release the TC molecules and reduces repulsive interactions there.…”

Specific ion effects on the micellization of aqueous mixed cationic/anionic surfactant systems with various counterions

“…Mixed micellization of cationic/anionic surfactants has attracted increasing interest over the past 20 years due to the strong synergism arising from the strong electrostatic attraction between the oppositely charged headgroups [36][37][38][39][40][41][42][43][44][45]. Usually the micellar compositions of the mixed cationic/anionic surfactants at cmc are nearly equimolar over a wide range of mixing ratios [46][47][48][49], the addition of inorganic salt has little or no effect on the cmc of these mixed cationic/anionic surfactant systems.…”

Salt Effect on the Aggregation Behaviors of an Anionic Carboxylate Gemini and a Cationic Surfactant

“…There is work [7] studied the phase behavior and thermodynamics of a mixture of a cationic Gemini surfactant and sodium dodecyl sulfate (SDS) in aqueous solution and obtained the phase boundaries including the transition regions inside single phases by varying continuously the surfactant mixing ratio. Yoshimura et al [8] examined the interaction of trimeric-type quaternary ammonium surfactant with anionic sodium n-octyl sulfate and found the mixtures showed higher efficiencies in lowering the surface tension than the individual surfactants. Fewer reports, however, are on the mixtures of anionic Gemini surfactants with oppositely charged surfactants.…”